scholarly journals Room-temperature ferromagnetism in Co-doped ZnO diluted magnetic semiconductor

2006 ◽  
Vol 55 (12) ◽  
pp. 6651
Author(s):  
Wang Yi ◽  
Sun Lei ◽  
Han De-Dong ◽  
Liu Li-Feng ◽  
Kang Jin-Feng ◽  
...  
Keyword(s):  
Room Temperature ◽  
Diluted Magnetic Semiconductor ◽  
Room Temperature Ferromagnetism ◽  
Magnetic Semiconductor ◽  
Doped Zno ◽  
Diluted Magnetic ◽  
Co Doped

Room temperature ferromagnetism of Fe-doped ZnO and MgO thin films prepared by ink-jet printing

2012 ◽  
Vol 1394 ◽  
Author(s):  
Mei Fang ◽  
Wolfgang Voit ◽  
Adrica Kyndiah ◽  
Yan Wu ◽  
Lyubov Belova ◽  
...  
Keyword(s):  
Thin Films ◽  
Room Temperature ◽  
Diluted Magnetic Semiconductor ◽  
Room Temperature Ferromagnetism ◽  
Magnetic Semiconductor ◽  
Ink Jet ◽  
Jet Printing ◽  
Doped Zno ◽  
Diluted Magnetic ◽  
Magnetic Insulator

ABSTRACTRoom temperature magnetic properties of un-doped, as well as 10 at.% Fe-doped ZnO and MgO single-pass layer of ink-jet printed thin films have been investigated to obtain insight into the role of the band gaps and mechanisms for the origin of ferromagnetic order in these materials. It is found that on doping with Fe, the saturation magnetization is enhanced by several-fold in both systems when compared with the respective un-doped thin films. For a “28 nm thick film of Fe-doped ZnO (Diluted Magnetic Semiconductor, DMS) we observe an enhanced moment of 0.465μB /Fe atom while it is around 0.111μB/Fe atom for the doped MgO (Diluted Magnetic Insulator, DMI) film of comparable thickness. Also, the pure ZnO is far more ferromagnetic than pure MgO at comparable low film thicknesses which can be attributed to defect induced magnetism originating from cat-ion vacancies. However, the film thickness dependence of the magnetization and the defect concentrations are found to be significantly different in the two systems so that a comparison of the magnetism becomes more complex for thicker films.

Origin of Room-Temperature Ferromagnetism for Cobalt-Doped ZnO Diluted Magnetic Semiconductor

2008 ◽  
Vol 25 (4) ◽  
pp. 1438-1441 ◽  
Author(s):  
Peng Long ◽  
Zhang Huai-Wu ◽  
Wen Qi-Ye ◽  
Song Yuan-Qiang ◽  
Su Hua ◽  
...  
Keyword(s):  
Room Temperature ◽  
Diluted Magnetic Semiconductor ◽  
Room Temperature Ferromagnetism ◽  
Magnetic Semiconductor ◽  
Doped Zno ◽  
Diluted Magnetic

Room Temperature Ferromagnetism in Novel Diluted Magnetic Semiconductor Cd1-xMnxGeP2

2000 ◽  
Vol 39 (Part 2, No. 10A) ◽  
pp. L949-L951 ◽  
Author(s):  
Gennadiy A. Medvedkin ◽  
Takayuki Ishibashi ◽  
Takao Nishi ◽  
Koji Hayata ◽  
Yoichi Hasegawa ◽  
...  
Keyword(s):  
Room Temperature ◽  
Diluted Magnetic Semiconductor ◽  
Room Temperature Ferromagnetism ◽  
Magnetic Semiconductor ◽  
Diluted Magnetic

Study of diluted magnetic semiconductor: Co-doped ZnO

2002 ◽  
Vol 81 (21) ◽  
pp. 4020-4022 ◽  
Author(s):  
Hyeon-Jun Lee ◽  
Se-Young Jeong ◽  
Chae Ryong Cho ◽  
Chul Hong Park
Keyword(s):  
Diluted Magnetic Semiconductor ◽  
Magnetic Semiconductor ◽  
Doped Zno ◽  
Diluted Magnetic ◽  
Co Doped
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